A Morphological and Morphometric Study of Bite Marks Caused by Mice (Mus Musculus) on Different Baits for Forensic Purposes

• Víctor A. Toledo ^[3] ; Gabriel M. Fonseca ^[1] ; Paula A. González ^[2] ; Luis Ibarra ^[2] ; Francisco J. Torres ^[4] ; Pedro L. Sáez
  1. [1] Universidad de La Frontera

     Universidad de La Frontera

     Temuco, Chile

     
  2. [2] Universidad de Chile

     Universidad de Chile

     Santiago, Chile

     
  3. [3] University Institute of Research in Police Sciences (IUICP), University of Alcalá, Ctra Madrid Spain
  4. [4] Central Criminalistics Laboratory (LACRIM) Chilean Investigative Police (PDI) Santiago Chile

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• Localización: Journal of forensic sciences, ISSN-e 1556-4029, ISSN 0022-1198, Vol. 62, Nº. 2, 2017, págs. 462-467
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In animal bites, the dental attributes can be fundamental in identifying the marks made by various species on different matrices. Although rodent bite marks have been studied in the context of postmortem interference, little research has used different baits to analyze these marks linking not only specific behavior patterns but also the possibility of structural damage. Twenty mice (Mus musculus) were exposed to different baits to study their bite marks in a controlled model. The known pattern of parallel and multiple grooves has been seen in all baits, but polyvinyl chloride and fiber-optic cable were significantly different between each other and the other baits. Some baits showed patterns of anchorage of the upper incisors and space between the lower incisors when gnawing. This technical note represents a novel model of analysis where veterinarians and/or dentists may be asked to give an opinion on alleged animal bite marks.